Use of the Atomic Bomb The Atomic bomb was used on Hiroshima August 6, 1945 Nagasaki was hit with an atomic bomb on August 9, 1945 http://www.atomicarchive.com/History/twocities/hiroshima/images/SB53s.jpg The Enola Gay was used to carry out the bombing on Hiroshima They used the Little Boy gun-type bomb http://www.atomicarchive.com/History/twocities/nagasaki/images/H21s.jpg The Bockscar was used to deliver the "Fat Man" implosion type bomb on Nagasaki